Author: David Mudrák
MDL-38509 Check for writable plugin type location in install from ZIP form
Standard mform validation is implemented as well as progressively
enhanced AJAX version.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=ddab904ba800d0aa7d7ae824c0847aeca394e334
http://github.com/moodle/moodle/commit/ddab904ba800d0aa7d7ae824c0847aeca394e334
+ 2.5 en [permcheck,tool_installaddon]
+ 2.5 en [permcheckerror,tool_installaddon]
+ 2.5 en [permcheckprogress,tool_installaddon]
+ 2.5 en [permcheckresultno,tool_installaddon]
+ 2.5 en [permcheckresultyes,tool_installaddon]